After copy task is finished, wait for Gmail server to sync all the copied email items.Enter ‘ Outlook Mac’ in search and select the folder.Now right-click on the email folder in your Outlook Exchange account, such as Inbox and choose ‘ Copy Folder…’.The software helps convert an OLM file to PST file format maintaining the original folder hierarchy. Quick Solution: Use Stellar Converter for OLM to easily export data from Mac Outlook (OLM) file to PST in a few simple steps. Thus, to export Mac Outlook mail items to PST, a conversion between OLM and PST formats is needed. Outlook for Mac uses OLM file format to save and export mailbox data. However, problems may arise when exporting mailbox items such as emails, contacts, notes, calendar, etc. Outlook for Mac works just as fine as Outlook for Windows. One of the most favorable aspects of Microsoft Outlook is its compatibility with different operating systems, such as macOS and Windows. Hence, to export data from Mac Outlook 2011 to PST, you need an OLM to PST converter software or follow the workaround discussed in this post. Instead, it exports mailbox items in OLM file format, which is not supported by Outlook for Windows or Office 365. Summary: Outlook for Mac does not export PST file.